
1) Clear and easy to read composition (functional)
2) Each part - each positive part (trees, foliage, hills) and each negative part balance artistically against each other
in a pleasant design (artistic)

balancing art and function is the goal
http://johnkstuff.blogspot.com/2008/06/howie-post-tree-king.html
Don't forget to give me a clickable link in the comments if you want to show me your studies. If it's not clickable it's less likely to be seen.
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